If the mass density of the universe were greater than the critical density, then the universe would reach a maximum size and then begin to collapse. It would become denser and hotter again, ending with a state that was similar to that in which it started—a Big Crunch.

According to that I have two questions: Does gravity have a limit to how far it can reach? If somethings extremely dense it would kind of make since to me for it to "explode" but why would it?

I feel you have the theory wrong. The Universe does not have a maximum density. Or so I think.

Anyone, what I know is that as the universe decelerates and loses energy, less suns are formed. When a sun dies, it uses alot of it's energy to create a new one. However this is a cycle which itself dies. Eventually everything will freeze over and the world will be lifeless.

According to thathttp://www.debate.org... I have two questions: Does gravity have a limit to how far it can reach? If somethings extremely dense it would kind of make since to me for it to "explode" but why would it?

At 2/3/2009 1:23:12 PM, I-am-a-panda wrote:I feel you have the theory wrong. The Universe does not have a maximum density. Or so I think.

Anyone, what I know is that as the universe decelerates and loses energy, less suns are formed. When a sun dies, it uses alot of it's energy to create a new one. However this is a cycle which itself dies. Eventually everything will freeze over and the world will be lifeless.